Amiga.org

Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: tonyvdb on October 27, 2014, 09:39:39 PM

Title: A4000 in a tower issues
Post by: tonyvdb on October 27, 2014, 09:39:39 PM
Hi everyone, its been at least a couple years since Ive been on here and my A4000 has been sitting almost that long without use.

Today I turned it on and I get the Inovision screen (I have the video adapter that clips directly on the video chip so I can display on a normal LCD monitor) but after that nothing. it stays black. The keyboard works as I can use the three finger solute to reboot.  

I did the "hold both mouse buttons down" trick and I do get the boot options screen. If I also boot from a workbench disk i do get access to the other drive I have on board. I can hear both drives spin up.

A little more history with my machine:
I put it in a tower and have a video toaster flyer installed (SCSI drives are in a separate tower), I have a board that comes off the original zorrow slots and allows the cards to sit properly in the tower (I dont remeber the name of this board).

I hope not to spend money to get this going again but if I have to replace the drive then so be it.

Thanks for your help :)
Title: Re: A4000 in a tower issues
Post by: Oldsmobile_Mike on October 27, 2014, 09:57:25 PM
Quote from: tonyvdb;775883
I did the "hold both mouse buttons down" trick and I do get the boot options screen. If I also boot from a workbench disk i do get access to the other drive I have on board. I can hear both drives spin up.

So if I understand correctly, if you boot from a Workbench disk you're able to boot normally?
Title: Re: A4000 in a tower issues
Post by: tonyvdb on October 27, 2014, 09:59:05 PM
Quote from: Oldsmobile_Mike;775890
So if I understand correctly, if you boot from a Workbench disk you're able to boot normally?

Yes but I dont see the OS drive show up just the secondary drive.
Title: Re: A4000 in a tower issues
Post by: danbeaver on October 27, 2014, 10:00:26 PM
Have you taken it apart and tried to diagnose it from the component level?  Using motherboard, floppy and one hard drive?  Then once working at the basic level, added back each piece until you found the one that needs cleaning/chips reseated/replacement?

Someone will suggest your PSU is defective and the motherboard capacitors need replacing at some point, too.
Title: Re: A4000 in a tower issues
Post by: tonyvdb on October 27, 2014, 10:02:57 PM
The Power supply is a newer ATX 400watt unit that I retrofitted to work on the A4000.
Title: Re: A4000 in a tower issues
Post by: danbeaver on October 27, 2014, 10:05:52 PM
So you have checked it at the base level?  And it only asks for a floppy?
Title: Re: A4000 in a tower issues
Post by: tonyvdb on October 27, 2014, 10:07:52 PM
no, I guess I need to do that first. Its been so long Ive forgotten how to trouble shoot this machine.
Title: Re: A4000 in a tower issues
Post by: tonyvdb on October 27, 2014, 10:13:03 PM
Ok, I disconnected all drives and including the CDrom and yes I do get the 3.1rom screen asking for a floppy.
Title: Re: A4000 in a tower issues
Post by: Oldsmobile_Mike on October 27, 2014, 10:18:15 PM
If it boots and works normally off of a floppy disk, then your problem is probably somewhere in the software on your boot drive, or that the boot drive has become faulty over time. Can you boot with no startup-sequence (by holding down both mouse buttons) and accessing DH0: that way?
 
 Edit: just saw your other comment about the OS drive not showing up.  Have you checked all the cables to it?
Title: Re: A4000 in a tower issues
Post by: tonyvdb on October 27, 2014, 10:34:22 PM
If I connect the drive only the HD led flashes as its accessing something but the screen stays blank, If I plug the CDrom drive the HD led stays solid but I suspect its because the os is not loading the ASIM CDFS software?
No change if I force it to boot off the drive
Title: Re: A4000 in a tower issues
Post by: danbeaver on October 27, 2014, 10:41:57 PM
Sounds like a eulogy is in order.
Title: Re: A4000 in a tower issues
Post by: tonyvdb on October 27, 2014, 10:50:26 PM
so a dead drive I guess? now comes the fun part. finding an IDE drive LOL
Title: Re: A4000 in a tower issues
Post by: Oldsmobile_Mike on October 27, 2014, 10:54:42 PM
Quote from: tonyvdb;775907
so a dead drive I guess? now comes the fun part. finding an IDE drive LOL

Sounds like.  It happens.  I got frustrated and stopped using Amiga's for almost 10 years when all of my hard drives died at the same time in early 2003, taking with them my entire software collection from the '90s.  :(  Any chance of testing the drive in another Amiga, or through WinUAE?  That's one way to make 100% sure.
Title: Re: A4000 in a tower issues
Post by: tonyvdb on October 27, 2014, 10:58:47 PM
I do have Amiga forever on my PC is winUAE part of that? I regret selling my CyberstormPPC and its SCSI controller, was much more reliable.
Title: Re: A4000 in a tower issues
Post by: amigadave on October 27, 2014, 11:26:05 PM
Quote from: tonyvdb;775909
I do have Amiga forever on my PC is winUAE part of that? I regret selling my CyberstormPPC and its SCSI controller, was much more reliable.

Yes, AmigaForever is based on WinUAE.
Title: Re: A4000 in a tower issues
Post by: tonyvdb on October 28, 2014, 01:09:06 AM
So is there a SCSI to IDE adapter that would work on my a4000?
Title: Re: A4000 in a tower issues
Post by: danbeaver on October 28, 2014, 01:11:55 AM
Yes, but do you have an PATA IDE free on your PC?  While I have a USB device for connecting those, my last 2 PC builds were SATA only motherboards.

If it is dead, EwBay has 40 and 80 GB IDE drives in the $20 USD (or Less) range; I even formatted a couple with OS3.9 as spares to keep on hand.

Once you solve your HDD issue, I would still take her apart to clean and de-dust.
Title: Re: A4000 in a tower issues
Post by: danbeaver on October 28, 2014, 02:46:25 AM
Quote from: tonyvdb;775914
So is there a SCSI to IDE adapter that would work on my a4000?


Yep, several.  I have a couple of Acards and a Yamaha that work.  There is even an Acard SCSI to SATA version.  The data conversions are not without some bus speed loss though.
Title: Re: A4000 in a tower issues
Post by: Jeff on October 28, 2014, 03:53:39 AM
I have a pile of smaller IDE drives that should work in your machine. Your welcome to have one for postage. I highly recommend a standard PC compact flash <--> IDE adapter and a small CF card. You can also sneaker net with a PC this way much easier.
Title: Re: A4000 in a tower issues
Post by: tonyvdb on October 28, 2014, 01:40:22 PM
Has anyone tried a Solid state drive in their Amiga?
Is there a sata > IDE adapter?
Title: Re: A4000 in a tower issues
Post by: Oldsmobile_Mike on October 28, 2014, 05:34:49 PM
Quote from: tonyvdb;775952
Has anyone tried a Solid state drive in their Amiga?
Is there a sata > IDE adapter?

I believe there are several people on this forum that use them.  Either through SCSI->SATA bridges or some other kind of complicated chain of SCSI->IDE->SATA bridge, etc.  I've even seen a few IDE (PATA) SSD drives for sale, Newegg.com lists several of them but they're not cheap.  IMHO a CF adapter is the easiest way to go.
Title: Re: A4000 in a tower issues
Post by: tonyvdb on October 28, 2014, 06:08:20 PM
Quote from: Oldsmobile_Mike;775969
IMHO a CF adapter is the easiest way to go.

Thanks, I think I will go this rout
http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=883
Title: Re: A4000 in a tower issues
Post by: Oldsmobile_Mike on October 28, 2014, 06:36:35 PM
Good plan.  :)